202012323123001 has 4 divisors (see below), whose sum is σ = 202321683495972. Its totient is φ = 201702962750032.

The previous prime is 202012323122999. The next prime is 202012323123031. The reversal of 202012323123001 is 100321323210202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24644264561401 + 177368058561600 = 4964299^2 + 13317960^2 .

It is a cyclic number.

It is not a de Polignac number, because 202012323123001 - 2¹ = 202012323122999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012323123031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154680185506 + ... + 154680186811.

It is an arithmetic number, because the mean of its divisors is an integer number (50580420873993).

Almost surely, 2^{202012323123001} is an apocalyptic number.

It is an amenable number.

202012323123001 is a deficient number, since it is larger than the sum of its proper divisors (309360372971).

202012323123001 is an equidigital number, since it uses as much as digits as its factorization.

202012323123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309360372970.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 202012323123001 its reverse (100321323210202), we get a palindrome (302333646333203).

The spelling of 202012323123001 in words is "two hundred two trillion, twelve billion, three hundred twenty-three million, one hundred twenty-three thousand, one".